neunundsiebzig

Neunundsiebzig is the German designation for the integer 79. It is an odd prime number situated between 78 and 80.

Name and spelling: The word is formed from neun (nine) and siebzig (seventy), connected by und, following the German pattern for numbers from 21 to 99. The conventional spelling is neunundsiebzig, written as a single word.

Mathematics: 79 is a prime number and the 22nd prime in the sequence of primes. It has no divisors other than 1 and itself.

Numeral representations: In Roman numerals it is LXXIX; in binary it is 1001111; in hexadecimal it is 0x4F.

Science and usage: The atomic number 79 denotes gold (chemical symbol Au) in the periodic table. Gold is a dense, malleable metal with extensive use in jewelry, electronics, and various industrial applications.